01-14-2024, 03:06 AM
There should be an accepted momentum for reliable knockdown. Yes M O M E N T U M -- not energy.
Momentum is nothing more than bullet mass times its impact velocity. The confusing part comes in when we introduce units or try to get too cute with calculating the momentum needed ourselves based on the target characteristics -- too many variables to handle when there's a ton of experience on what works and what does not work.
Bottom Line -- The best way to improve chances of knockdown given a hit is to go through the list of bullets you can use and using appropriate loads, calculate mass X velocity at the target and grab the one with mostest.
Units won't matter as long as you use the same all the way through. (BTW the easiest to understand will be bullet mass in kg and impact in meters per second, but fps times grains will work too)
Momentum is nothing more than bullet mass times its impact velocity. The confusing part comes in when we introduce units or try to get too cute with calculating the momentum needed ourselves based on the target characteristics -- too many variables to handle when there's a ton of experience on what works and what does not work.
Bottom Line -- The best way to improve chances of knockdown given a hit is to go through the list of bullets you can use and using appropriate loads, calculate mass X velocity at the target and grab the one with mostest.
Units won't matter as long as you use the same all the way through. (BTW the easiest to understand will be bullet mass in kg and impact in meters per second, but fps times grains will work too)
shootersnotes.com
"To those who have fought and almost died for it, freedom has a flavor the protected will never know."
-- Author Unknown
"If at first you do succeed, try not to look astonished!" -- Milton Berle
"To those who have fought and almost died for it, freedom has a flavor the protected will never know."
-- Author Unknown
"If at first you do succeed, try not to look astonished!" -- Milton Berle

